Planning application
Flat A, 78 Onslow Gardens, Hornsey, London, N10 3JX
Works: Extension Small domestic
Read from the description, not a valuation. How we read the register
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Erection of a single-storey rear extension to ground floor flat; alterations to rear bay with new lower ground rear doors to sunken patio area.
As published by the council, reference HGY/2026/2331
Application record
- Reference
- HGY/2026/2331
- Type
- Householder planning permission
- Status
- Under Consultation
- Received
- 28 Aug 2026
- Validated
- 28 Aug 2026
- Ward
- Muswell Hill
- Decision by
- Delegated Decision
- Postcode
- N10 3JX
Timeline
Dates from the published record
-
28 Aug 2026
Received by Haringey
-
10 Sep 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 23 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Haringey took a median of 53 days over the applications it decided in the last year.
Documents
Plans, drawings, consultee responses and the officer's report
3 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Trade members open them from here.
Open the documentsWhat happens while it is decided
This application is with Haringey for determination, against a statutory target of eight weeks. Over the last year Haringey decided householder applications in a median of 56 days. More in our guide to how long planning decisions take.
About householder applications
Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.
Nearby applications
Within 500 metres
-
74 Onslow Gardens, Hornsey, London, N10 3JX
Demolition of existing rear extension and replacement with rear and side infill extension, new rear patio, flat roof dormer window to front roof slope, replacement of exiting timber casement windows and front entrance door.
Granted Householder Extension Loft or dormer +2 26 docsDomestic -
Ground Floor Flat, 72 Woodland Gardens, Hornsey, London, N10 3UA
Alterations to existing rear extension, roof light with new external windows
Granted Full applications Extension Loft or dormer +1 17 docs -
36 Woodland Gardens, Hornsey, London, N10 3UA
Replacement of existing single storey conservatory with glazed ground floor rear extension; enlargement of garden shed to incorporate enclosure for an air source heat pump; changes to rear garden landscaping.
Granted Householder Extension Windows or glazing 14 docsSmall domestic -
50 Woodland Gardens, Hornsey, London, N10 3UA
Removal/variation of condition 3 (Design and Materials) as attached to planning permission HGY/2015/1450 as approved on 09/07/2015 for 'Conversion of single family dwelling into 3 self-contained flats (2 x 3 bedroom and 1 x 1 bedroom). Construction / adaptation of rear roof to include 3 x dormers, installation of rooflights to front roofslope, and insertion of 1 new window and enlargement of 2 windows to lower ground floor'
Withdrawn Amendments New dwelling Loft or dormer +1 15 docsDomestic -
50 Woodland Gardens, Hornsey, London, N10 3UA
91% historically approved · decision due ~27 Oct
Replacement of the existing stone tile cladding to the rear dormer with zinc cladding.
Awaiting decision Householder Loft or dormer 15 docsDomestic -
Ground Floor Flat A, 26 Woodland Gardens, Hornsey, London, N10 3UA
Non-Material Amendment application following a grant of planning permission HGY/2021/2079 in relation to the alteration to the rear of the house:- 1. Minor amendment to the design of the central door, now in white timber, with double-glazing; 2. Revision to the design of the window on the right, to be exactly the same design as the existing window but in double-glazed white uPVC; 3. The window on the left to remain as a window rather than forming a new double door, retaining exactly the same design as the existing window but in double-glazed white uPVC.
Granted Amendments Windows or glazing 6 docs
Other householder applications
In Haringey
-
HGY/2026/2282 Awaiting decision
77 Falkland Road, Hornsey, London, N8 0NS
Single storey side and rear extension.
-
HGY/2026/2059 Granted
21 Shanklin Road, Hornsey, London, N8 8TJ
Single Storey Rear Extension
-
HGY/2026/2162 Granted
71 Fairfax Road, Hornsey, London, N8 0NH
Erection of L-shaped rear dormer; erection of single storey rear extension; 2 no. front roof lights.
-
HGY/2026/1895 Granted
396 St Anns Road, Tottenham, London, N15 3ST
Erection of single storey side infill extension, formation of dormer window and insertion of 4 nos. rooflights (3no. front facing and 1no. rear facing).
-
HGY/2026/1959 Granted
10 Roseberry Gardens, Tottenham, London, N4 1JJ
Erection of a single storey rear and side wraparound extension, formation of dormer window and insertion of 3 nos. rooflights to front roof slope (amended).